Stove and burner therefor



Dec. 19, 1922.

' W. C. COLEMAN.

' STOVE AND BURNER THEREFOR.

FILED DEC-23,192!- N R M m 2 6 w M Patented Dec. 19, 1922.

rare

WILLIAM G. COLEMAN, on wrcrrrra, Kansas.

srovn AND Emma *rnnnnron.

, Application filed December 23, 1921. Serial Ma a. I

T0 cZZ whom it may concern:

Be it known that l, WILLIAM C. COLEMAN,

a. citizen of the United States, residing at Wichita, in the county of Sedgwick and State of Kansas, have invented certain new and useful Improvements in Stoves and Burners Therefor; and l. dodeclare the following to be'a full, clear, a-ndexact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference .being had to the accompanying drawings,

ing hydrocarbon fuels, in which the fuel is I put under pressure and admitted toa mixing zone where the air necessary to provide the requisite amount of oxygen to support combustion is mingled with the hydrocarbon content of the fuel to make an ignitible mixture. Meansis provided whereby the burner may be conveniently primed or preheated so as to convert the liquid content of the fuel into.v a vapor or gaseous phase, preparatory to mixing with the air.

The novel arrangement of the invention 'will be clearly understood by reference to the following description in connection with the accompanying drawings, in which Fig. l is a perspective view of a stove constructed in accordance with my invention.

Fig. 2 is a side elevational view, parts of the air tube and mixing chamber hood being shown in section, and

Fig. 3 is a sectional view on the line 3-8 of Fig. 2.

The fount l is provided with a filler opening2, which maybe closedby a cap provided with a nipple 3 so that the end of a pressure pump may be connected thereto to supply the fount with the necessary pressure to force the liquid'therefrom. Extending into the fount 3 and located preferably at the central portion thereof is a discharge tube a, surrounded by a hollow post 5, carrying a bracket 6, part of which constitutes a liquid receiving, priming pan 7. The bracket 6 supports an open ended air tube 8, through the lower end 9 of which air may enter at a point above the top of the fount. The air tube 8 has an off-set portion 10 with a discharge opening 11 in line'with the discharge end ll. it will strike the a the coils being an I the space surroundedby ally aligned with the pan. l

. .5 .1 i end 12 o l too pipe comm end 11 at 14 and the rate of dischz? can be controlled by a needle valve, the stem 15 of whlch is provided with an end wheel 16. The point of the needle valve is not shown, but such constructions are well understood, it belng obvious that when the needle valve is unseated, the pressure in the tank or tcunt 1 will force the liquid through pipe 4, through 0011 13, up thrcughthe discharge end 14:, through the discharge end it of the tube 8, and into the IIUXlllg hood.

The mlxlnghood sshown as consisting of a truncated cone 1?, entirely enclosing a mixing space or chamber 18 and the inclined upper face of the hood is provided with openings 19, adapted to be closedby removable disks which may be slitted or perforated according to the whim of the manufacturer.

The central portion of the hood is pro vided with a cap or ba'liie 20, terminating in 7 so that irough the open t d inicr of the cap 2:) and be deflected. onto the l lOtH 22 of the hood 17. p i v The floor. is preferably inclined or grooved spaced from the discharge endll when the liquid passes 'tl I so that the liquid will flow toward the discharge opening 23, surrounded by a depending tubular portion concentric with the space between the coils 13. 'lheretfore, when it isdesired to startthe stove and the needle valve is unseated, the oil will be forced in a liquid phase against the cap 20 and directed ontothe floor, because the. iiange 21 will prevent its spreading radially. discharged through the coils 13' into the pan 7, it maybe ignited so that it will heat the coils 13 causing the additior liquid forced into the coils to vaporize or change from the liquid to the vapor phase. Then the vaporized hydrocarbon will pass into the hood' through the uppe tube 8.

The discharge end 12 of the pipe at will serve as an injector nozzle, drawing through the end 9 of the pipe 8 and allowing it to discharge into the hood where the air and hydrocarbon content in the 'apor phase wi l min to constitute a fuel so that it may be ignited through the openings in end 11 of the As it is the caps or disks 19, covering the openabove the burner so that the part of the pan to be heated will be adapted to receive the maximum heat from the burner.

Such a device as I have heretofore described and illustrated in the accompanying drawings willbe inexpensive to manufacture, will be etlicient in use and is particularly applicable for use as a camp stove or tourists stove, for which purpose it is particularly recommended.

lfhat I claim and desire to secure by Letters Patent is: i

l. in a device of the class described, a liq-- l pipe leading 'lroin the tount and having a portion,thereo'i coiled to provide a central vertical space, a priming pan beneath the space surrounded by the code, a vertical air pipe having an off-set portion into which the first named pipe discharges, the air pipe having a discharge end above the discharge end of the first named pipe, a hood into which the air pipe discharges, the hood being formed with vapor emitting orifices, and a teed disclnirge, the teed discharge being in axial alignment with the space ten-med by the coils.

2. A device oi the class described co1nprising a liquid containing ftount having means for introducing air pressure upon the body of the liquid within the tount, a liquid iuel discharge pipe extending vertically from the fount and coiled intermediate its ends to provide a vertical space confined by the coils, a valve for valving the orificesin the pipe, an air tube supported by the fount and having a discharge end, the discharge end of the pipe connnunicating with the tube, a hood into which the tube discharges, the hood being provided with a fluid directing bafi le, orifices about the same, a port in the .-containing tount having means for lI1-" troduclng all" pressure thereinto, a discharge floor of the hood aligning with the space surrounded by the coils, and a priming pan beneath the coils whereby the fuel may initially flow from the-hood to the priming pan so that when it is ignited, it will heat the coils to change the fuel from the liquid phase to a vapor phase.

3. A device oi? the class described comprising a liquid containing fount having means for introducing air pressure onto the body of the liquid, an open ended air tube supported by the fou'nt and carrying a hoodat its upper end, the hood being provided witha floor to provide a mixing chamberhaving gasoriiices therein,-a liquid fuel discharging pipe communicating with the fount and with the tube, and means for valving the pipe.

4-. A device or the class described comprising a liquid containing fount having means for introducing air pressure onto the body of the liquid, an open ended air tube supported by the tount and carrying a hood at its upper end, the hood being provided with a floor to provide a mixing chamber having gas orifices therein, a liquid fuel. dis charging pipe communicating with the tount and with the tube, means for valving the pipe, standards carried by the tount, and a grid carried by the standards.

A device ot the class described comprising a liquidcontaining fount having means tor introducing air pressure thereinto, a tuel pipe extend ng upwardly from the lonnt and I communicating therewith, the

pipe l'iaving its intermediate portions coiled in lateral convolutes, a hood provided with a floor and, having vapor fuel openings in its upper tace, means for admitting an: to

the hood, means tor introducing the liquid fuel into'the hood, means for valving the pipe, a priming pan beneath the coils, and a downwardly extending port coni'municating with the floor of the hood and in axial alignment with the space confined by the convolutes olithe coils. In testimony whereof I affix my signature.

WILLIAM cQ COLEMAN. 

